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Finding the Fourth Proportional to 672,331.60, 943,626.20 and 672,331.60

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Solution

The fourth proportional to 672,331.60, 943,626.20 and 672,331.60 is: 943,626.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,331.60 : 943,626.20 = 672,331.60 : x
  2. Step 2: Convert to fraction form
    672,331.60/943,626.20 = 672,331.60/x
  3. Step 3: Cross multiply
    672,331.60x = 943,626.20 × 672,331.60
  4. Step 4: Simplify right side
    672,331.60x = 634,429,712,847.92
  5. Step 5: Solve for x
    x = 634,429,712,847.92/672,331.60
  6. Step 6: Final answer
    x = 943,626.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.